Improvement-in sole and heel plates for boots and shoes



v vS. Z. WILLSON. Sole and Heel Plates for Boats and Shoes.

,969. Patented July 29,1879.

MPE ERS, PHOTO-LITHOGRAPHER. WABNINGTON. D. O.

UNITED STATES PATENT OFFICE.

SAMUEL Z. WILLSON, OF BAY CITY, MICHIGAN.

I IMPROVEMENTIN SOLE AND HEEL PLATES FOR BOOTS AND SHOES.

Specification forming part of Letters Patent No. 217,969, dated July 29,1879; application filed March 4, 1879..

To all whom it may concern:

Be it known that I, SAMUEL Z. WILLsoN, of Bay City, in the county of Bayand State of Michigan, have invented an Improvement in Raft-smens andCarpenters Adjustable Sole and Heel Plates, of which the following is aspecification.

The nature of this invention relates to certain new and usefulimprovements in the construction of adjustable sole and heel plates,which are provided with brads or spikes, de-

, signed for the use of raftsmen on logs, carpenters onframes and roofsof buildings, and all other practicable purposes wherein security fromfalling or slipping is required.

The invention consists in the peculiar construction and arrangement ofthe various parts, all as more fully hereinafter set forth.

Figure 1 is a perspective view of my device secured in place. Fig. 2 isa longitudinal vertical central section. Fig. 3' is an enlargedperspective of one of the brads.

In the accompanying drawings, which form a part of this specification, Arepresents the sole and heel of a boot or shoe, in the bottom faces ofwhich are set the plates a, which are secured in place by screws. Inthese plates is a hole, b, with a thread cut therein.

0 is a plate, preferably made of malleable iron, and which iscorresponding in shape to the sole of the boot. In this plate aresecured,

. at the time of casting, the brads or spikes c,

the recesses or slots at in the base of the brads being filled with themolten iron, which, when cold, holds them securely in place.

The plates may be cast with a rise around the base of each brad, ifdesired, which will give additional strength to the plate and support tothe brads.

D are set-screws, which pass through the plates, as shown, and receiveon their inner ends a washer-nut, e, which prevents their falling out ofthe plates when they are removed. These set-screws engage with thethreaded plates at in the sole or heel, being set to place by means of akey or wrench, which engages with their squared heads for that purpose.

Around the edge of the plate is a flange, g, or band, as shown in thedrawings, which protects the sole from wearing and prevents any sidemovement of the plate.

I have confined myself to the description of a sole-plate, not deemingit necessary to describe the heel-plate, as they are both madesubstantially the same, excepting form.

The brads may be of any desired number, more or less, and they may bedriven through the plate and riveted.

What I claim as my invention is An adjustable sole or heel plate, 0,provided with brads or spikes c and a flange, g, removably secured to aboot or shoe by means of setscrews D, which engage with plates on in thebottom of the sole or heel, substantially as and for the purposes setforth.

SAMUEL Z. WILLSON.

Witnesses:

ELJAH ZllVlJl/IER, O. E. BARTLETT.

